Newbie here, Having turn signal and 3rd BL issues

Hey everyone! I purchased a 2012 Dbl Cab 4x4 (Converted from GM)
I noticed the turn signals on dash are blinking fast but out front they aren’t even blinking. The ones on the mirrors work and the ones in back work but not the front.
I know the previous owner has done some work with HID’s and some LED halos as they are installed but I don’t see why the blinkers don’t work and my 3rd brake light doesn’t work as well.
I read about CK bulbs? Should I get CK and try installing them or am I looking at replacing fuses and relays?
Like I said I’ve never had this issue with GMs it was always plug and play but I’m just not familiar with Toyota’s and don’t want to screw anything up.
Any help would be appreciated

 

You're having 2 separate issues. The two bulbs in front are probably out and just need to be replaced. Maybe the same for the brake light. I'd just replace them all and see what happens. Hopefully the previous owner didn't screw up the wiring for the front signals.